An assembly for inflating a tire includes a pump assembly that includes a housing having an air inlet and an air outlet. A conduit is fluidly coupled to the air outlet. The housing has a first end wall, a second end wall and a peripheral wall. A bracket is attached to the housing and is positioned on the peripheral wall for removably securing the housing to a spoke of a tire. The actuator includes a disc rotatably coupled to the pump assembly wherein rotation of the disc actuates the pump assembly. A valve assembly is fluidly couples the conduit to a valve stem of the tire. A plate is removably attached to a frame of a bicycle such that an axle of the tire extends through the plate. The plate is selectively abutted against the disc such that the disc rotates when abutted the plate and rotated around the axle.